Means for controlling the valves for explosive-engines.



PATENTED MAR. 12, 1907. G. GORMAGK, JR. & P. c, ZUMDAHL.

MEANS POR CONTROLLING THE VALVES FUR EXPLUSIVE ENGINES.

APPLICATION FILED PEB. 5, 1904.

the

11 surround` the valve-stem, and a nut 12 has :STATES f PATENT onirica.

:GEORGE ooRMAoK, Ja., AND-FREDERICK o. ZUMDAHL, oF aocKFoRD,

' 1 ILLINOIS. I s

* MEANS Foa'ooN'l-RQLLING THElvALvEs Fon ExPLoslvE-ENGINES.

l Specication of Letters Patent! Patented March-12, 190'?.-

Application filed February 5,1904. Serial No. 192.104.A

To all whom it may-concern.-

Be it known that We, lGrnonen CoRM'AoK, Jr., and FREDERICK C. ZUMDAHL, citizens of the United States, residing at Rockford, in

the countyl o`f Winnebago and State of Illi-v nois,` have invented certain new and useful,

Means for Controlling the Valves forv Explovsive-Engines,

Fig. 1. Fig, 3 is a section of the spring ar 'rangement controlling the inlet-valve, the

valve held normally closed. Fig. 4 is a similar section to Fig. 3, in which additional spring-pressure is brought vto bear upon the inlet-valve 'at the time the exhaust-valve is held-open.

From the cylinder '1 .extends a 'passage-` Way 2,-leading to the valveeseat openings 3 and 4, the former communicating with. a horizontal chamber and the latter communi-v cating with a passage-way '6, leading to the outer air, known as an` exhaust-opening. A valve 7 is fitted tothe seat 3 and has 'its stem 8 extending upward through the casing.

-arm 9' has a movable engagement with valve-stemr Two coiled springs 10 and a screw-thread vconnection with the upper end of the valve-stem. The inner coiled spring 11 is somewhat shorter than the outer coiled spring 10 for a purpose to appear herel inafter.

lA valve 13 is and has a stem l-14 extending downward through the casing, and to its lower end is connected anv arm 15. A coiled spring surrounds the valve-stem 14 and is located between the arm 15 and casing. A rod 1'7 extends parallel with the valve-stems 8 and 14 and forms a connection between the two arms 9 and 1.5:` f

-A rocker-arm 18 .has a pivotal connection with the cylinder 1 one en'dv sup 'orting a roller 19 and its other end located) beneath theend of the valvesstem 1'4. A cam 2O is l supported "by the yshaft 21-and in its rotationswill oscillate the rocker-arm 18, which will move thefvalvestem 14 upward land raise the valve 13 from its seat against the y a, Fig. 2.- Fig. 2-is a vertical section on dotted line 6,'

tt'ed to the seat 4l Th valve 30, thereby compellinga the air to action ofthe spring 1 6, thereby allowing the burnt gases to, escape "from the cylinder through the exhaust-opening 6.'

At the time of opening the exhaust-valve 13 the inlet-valve will be held against its'seat by the action ofthe spring'lO but as it is best to employ a light spring to hold the valve 7 .against its seat it is necessary that said valve should be held firmly against its seat during the time the exhaust-valve 'is open. This we accomplish by the connection between the exhaust and inlet valves and the inner coiled s rinfr 11; As the exhaust-valve o ens the l P s P Vconnection between. the valves will be moved, which. will raise the arm 9 and ralse the spring l1 bodily against the nut 12 and somewhat compresses the spring, thereby imparting greater force to the linlet-valve stem and hold the valve more rmly to its seat. Y

A spring-arm 22 is supported by the casing, but insulated therefrom, and to it will be connected one of the'wires leading to the battery andforming art of the'electric circuit employed'inexp oding the engine. A screw 23 extends from the arm 9, and when the exhaustfvalve is closed a contact is made. between the spring and screw,l

valve opens the screw will be carried free of the spring,- thereby breaking the circuit.

The orizontal chamber 5 opens into an enlarged mixing-chamber 24, and from'this sage-way 26. A- check-valve 27 is fitte( to thereby` v.closing the' circuit,l and when the exhaustvmixing-'chambie'r extends a T having the vertical passage-way25v and the vhorizontal asj a seat 28 in the passage-wa 25. -A small opening 29 for the supply o gasolene communicates with the seatj28, so'that when the checl{valve '27 is closet/ll. the supply of gasole'ne is cut off.. i l

A globe-valve 30 lis nection with horizontal passage-way 26.

In starting a gasolene-engine it is necessary that'an excess amount but asfthe engine gains tion of gasolene tothe of gasolene be used; in speed the propor- 1s we accomplish by closin the globe'- air may be reduced.

located in a 'pipe con'- IOO pass the check-valve 27,.wh1c1 1 wil-1 hola it.

open and allow' gasolene to mix with the air and pass onto the cylinder in the usual man Iie... As the en inegains in speed we open vthe globe-valve, w -ch will allow the admission .of air to the Cylinder Without pasmg the .aml eXhQst-valve, aninlet-Valve,`two.eoi1ed check-Valve; but the amount of air allowed springs surrounding' thel stem of the inletto pass the globe-valve when mixed with air and gaselene pas'singtl cheek-valve'will be between the Valves, tlie eonneetion'wi h the 1n the proper 'proportloffs 1;' 0 give the required inlet-valve being such as to e'onipress both reslkllts.' l l 1 b f sprngsonly wlientle exhaust-valve is open.

if e en erge( mixing-01am er 24 ormse` l 1 N sEace withinwhich the air' and gsolene can SRIQ'HL t Oroughlymixbefore passing to theeylin- J J l We lclaim es our invention A. BRUEL,

4Ina gasolene-engine, the combination of E. BEUEL.

Walve and ofdi'erent lengt-hs, a connection v1'5 

